Sewing-machine.



V. l. VAN HORN.

SEWING MACHINE. APPLICATION FILED APR. I3. I9I4.

THE MORRIS PETERS C0., PHOTD-LITHO.. WASHINGTON. D. C

Patented Apr. 20, 1915.

V. l. VAN HORN. SEWING MACHINE.

AgLlcATloN min APR. 13. m4.

Paented Apr. 20, 1915.

3 SHEETS-SHEBT 2.

THE MORRIS PETERS C To-LITHO.. WASHINGTON, D. C

VAN HORN.

SEWING MACHiNE.

APPLICATION HLED APR. x3, |914.

Patented A131220, WM.

3 SHEETS-SHEET 3.

WIT/VESSES:

HE NoRRls FTERS co., PHOTO-LITHCL, WASHING TON. D. c.

Y VANDvIVER J". VAN HORN, 0F CHICAGO, LLINOIS. i

SEWING-MCHINE.

Application sied April 1a, 1914. serial No. 8315er.

T0 all whom t may concern.'

HORN, a citizen of the United States, residing at Chicago, in the countyof Cook and State of Illinois, have invented certain new and usefulImprovements in Sewing-Machines, of which the following is aspecification. l

The present invention relates generally to chain stitch sewing machines,and particularly to single chain machines, although some of its novelfeatures are applicable to machines which make a stitch consisting of aplurality of chains.

One object of the invention is to provide a chain stitch machine thatdoes not have or require any take-up mechanism, and this object isaccomplished by so constructing the stitch forming mechanism that in theprocess of forming the chain the loop is not enlarged either by the loopholder or by any other mechanism, in order Vto permit the properoperation of anyv of the parts. Or, in other words, this object of theinvention, c'. e., dispensing with a take-up, is accomplished byproviding improved mechanism of such construction that it may be so adjusted that the nascent loop is not formed with an excess of slackthread over and above that actually required for forming a singlestitch. This forming of the loop without an excess of slack andthereafter preventing such excess from being drawn into it areaccomplished by giving the needle exactly the amplitudeV of movementrequired for forming the nascent loop after the preceding loop has beenset and making the loop holder of such size in cross section that at nopart does it enlarge the nascent loop as it passes through it, thereby.preventing the drawing into its formation of a length of slack needlethread in excess of that actually required in making the stitch and theaccomplishing of these objects is facilitated by forming each loop andcausing it to interlock or ninterloop with the next previously formed'loop as close to the wrong side of the work as possible; and

this latter object is preferably accomplished by providing a rotatablepart, which is con centric with the loop holder (in the instance shownin the drawing), with a radially acting cast-off lug having an inclinedsurface that is located opposite, but out of contact with the heel ofthe loop holder and is adapted to engage the loop as it escapes from theheel of the loop holder and deflect 1t bodily toward the wrong sideofthe work. (By the wrong side of the work as used in this specificationis meant that side which is opposite to the side on which the needle islocated, whether the latter be located in customary vertical positionabove the work, or otherwise). Y

Another object of the invention is to hold the newly formed loop (whichfor the purpose of distinction is herein called the first loop, it beingthe iirst complete loop formed in the process of stitching) open, ordistended, and in a position substantially parallel with the plane ofthework in order to insurel the needles passing through it when it (theneedle) descends and forms the y next nascent loop, drawing into it theexact length of thread necessary to form said next nascent loop; and tothis end the castofl' lug aforesaid vterminates in a surface which isconcentric with the axis of the driver or rotatable part by which theloop holder is driven, said concentric surface being of suilicientlength, or circumferential extent, to hold the loop open andsubstantially parallel with the work, as aforesaid, long enough to allowthe point of the needle to pass through it and draw down the length ofthread necessary to compensate for thread taken up by the next precedingtightened or set stitch, this setting being accomplished in large partby the forward feeding of the work.

Another object of the invention is to pro- Vide improved means fordriving a rotatable loop holder-or looper, or loop taker or shuttle, Vassimilar parts are sometimes called. 'Y Y Another object of the inventionis to proJ vide simplified and improved means for causing the (nascentloop to bow inward, from the inner side of the needle, Ain order toinsurethe beak of the loop holders entering said loop between its innerside and the inner side `of the needle and thus avoid dropping stitches.(By inner side of the needle as herein used is meant that side whichordinarily is not grooved longitudinally, or, in other words, the sideopposite that along which the spool thread passes to the eye of theneedle.) ln order to accom plish this object the driver of the loopholder (which driver in that embodiment of they invention selected forthe purposes kof this application, has the general form of a l' disksurrounded by and lying in the plane Via `of the needle, so as toengagethe outer side V-of the nascent loop and prevent the loop are madea frombowing outward while compelling it to "bow inward'.

Another object of the invention is to provide an improved needle guardthe latter being aV technical term for`those variously constructeddevices by which the needle is guarded or braced laterally for thepurpose of preventing its bending laterally and this object, accordingto the present invention,

is accomplished by the use of a second guard coperating with the onefirst above -mentioned and bearing practically the same relation to theinner side of the needle as the .one first above mentioned does to theouter side, ofthe needle, excepting that the guard second abovementioned is not so high with reference to the amplitude of movement ofthe needle, the arrangement being such that just suliicient clearancefor the needle is left between' the two guards. 1

' Y 1With these and other objects in view the v invention consists inthe features of novelty 35- that are hereinafter described withreference to the accompanying drawings, which which:

Figure l is a sectional elevation of the head ofa sewing'machineembodying the invention, with the needle in its highest position, afragment of the work having a seam comprising a chain madefof a numberof loops interlocked or interlooped with each other being also shown andthe parts being shown inthe positions necessary to continuetheiroperation and continue the seam. Fig.

2 is a similar view on a larger scale of the major portion of the seamforming mechanism, with the needle in itslowest position and the nascentloop in process of formation. Fig. 3 is a view similar to Fig. 2,showing theneedle in the position which it l occupies after having movedupward a short distance from its lowest position and'showing thebeakof-the loop holder just entering yceV lthe nascent loop between itsinner side and the inner side of the needle, the inner side ofthe loopnot being seen in this ligure becauseit is on the inner side of theneedle `and yhidden thereby; Fig. 4 is an elevation similar to Fig. l,in so far as the seam forining mechanism is concerned, the parts beingshownv by this figure' in the positions which Vthey occupy after theloop holder has made part of this specification, and in nearly acomplete revolution in the direction of the arrow from the positionshown in Fig. 3, and its heel brought to a position which allows theloop to escape from it, which takes place while the needle is movingdownward, and after it has passed through the work but has not yetentered the previously formed loop. Fig. 5 is an elevation similar toFig. 4 after the loop holder has moved a little farther and the loop hasbeen cast olf of the heel of the loop holder and deflected to a positionclose to and substantially parallel with the wrong side of the work andthere held distended while the point of the needle passes through it,carrying with it the thread for forming the next loop. Fig. 5'h1 is anenlarged detail of some of the parts shown in Fig. 5. Fig. 6 is a viewsimilar to Figs. 4 and 5 after the loop holder has made a completerevolution from and again returned to the position shown in Fig. 3, theonly difference between these two figures being that Fig. 3 shows theholder taking the first formed nascent loop and Fig. 6 shows it takingthe last-formed nascent loop of a chain of stitch'es. Fig. 7 is asection on the line 7 7, Fig. 'i. Fig. 8 is a section on the line 8 8,Fig. 2, but on a reduced scale. Fig. 9 is a section on the line 9 9,Fig. 3, on the saine scale as Figs. l, 3, 5, 6, 7 and S. Fig. 9il is anenlarged detail of some of the parts shown in Fig. l). Figs. 10, ll andl2 are sections on the lines 10 l0, Fig. 5; ll ll, Fig. G; and l2 12,Fig. l, respectively. Fig. 13 is a perspective view of the loop holderon an enlarged scale. Fig. 14 is a sectional elevation of chain formingmechanism of modified construction, modiiied especially with respect tothe means for driving the loop holder and the cast off lug. Fig. l5 is asection thereof on the line l5 l5, Fig. 14.

A, represents the enlarged cross-head of the horizontal arm (not shown)of the machine head which supports parts customarily so supported inmany sewing machines, all of which parts may be of any desiredconstruction or arrangement in so far as they are used in carrying outthe present invention, since the present invention has nothing to dowith any part of the machine excepting as it relates solely to themechanism for forming the chain stitch. It may be here observed,however, that a machine having a chain-forming or seam-forming mechanismconstructed in accordance with the present invention does not have orrequire any take-up, because it does not have any mechanism that willdraw to and maintainrat a point between the last stitch and the spool alength of thread that takes the form of a slack loop, which length is inexcess of the length that is taken up by the needle itself as itdescends and simultaneously tightens the last stitch and draws from thespool the exact length of thread necessary for the next stitch. Itlogically follows that in the absence of this excess of thread over andabove what is actually necessary to form a single stitch, there will beno slack to be taken up, and therefore no need for a take-up This is thepremise upon which one important part of the present invention isfounded.-

n carrying out the invention, after leaving the spool, which may belocated in any convenient or desired position,the thread passes oversuitable guides, as B, to atension device, as C, and thence oversuitable guides, as D, to the eye of the needle E. F, is the presserfoot; G, the serrated feed dog to which the customary up and down and toand fro movements are imparted by mechanism of any desired constructionand H is the throat plate, all of which parts may be of any desiredconstruction and mode ofoperation, so long as they will enable thecarrying out of the invention.

The work is shown at l, and J is a seam, this term being used in thisspecification as meaning a number of chain stitches, j, comprising anumber of interlocked or interlooped loops, the thread of thelast-formed stitch, j', being a continuation of that portion, m, of thespool thread which lies upon the inner side of the needle and extendsfrom the work to the eye of the needle. ln other words the thread passesfrom the spool over the guides, B, to the tension, C, thence over theguides, D, along the outer side of the needle to and through the eye andthence. to the last completely made and tightened or set stitch of theseam.

In Figs. 2 and 3 neither the seam, nor even a single stitch, is shownbecause, these figures are intended to illustrate in its nascent orformative state the very first loop which is formed at thebeginning ofthe sewing operation. To this end the loose end, of the thread is heldtaut and the needle moved .downward to its lowest position, as shown inFig. 2. In moving downward the needle penetrates the work and after thetop side of the eye of the needle comes to a firm bearing on the threadat the bight between the two portions :e and w which lie on oppositesides of the needle and extend from the eye to the work, draws the spoolthread down with it. As will appear hereinafter, this drawing down ofthe thread has the double function of drawing from the spool the exactlength of thread necessary for a single stitch., and also of tighteningor setting the last made stitch in the work. lThis downward movement ofthe needle forms a loop, which is herein called the nascent loop theopposite sides m and of which lie against the opposite sides of theneedle, respectively. As the needle moves upward from its lowestposition (the frictionl of the work with the thread at the portionswhere it passes through the work preventing it from following the needleupward) that portion of the thread which exural tendency iscounter-acted by a guard,

9, which lies close to that portion x of the thread which extends alongthe outer side of the needle and prevents it from bowing inthisdirection, while at the same time it willforce or feed thev Vbightof the loop through the Veye of the needle and cause the loop to bowinward from the inner side of the needle. This spreads or distende theloop and permits the beak, l, of the rotatable loop holder', 2, to enterthe loop, moving close to the inner side of theneedle, thus avoiding thepossibility of skipping or drop ping stitches. A second guard, 9b, whichis similar to the guard,9a, excepting that it is not so deep, or sogreat in radial extent, as the guard, 9a, withl respect to the amplitudeof movement of the needle, both guards being formed with and carried bythe driver, 9, hereinafter described, cooperates with the guard, 9a, andbraces and sustains the needle as against lateral deflection, justsuiiicient space for the clearance of the needle being left between theguards.

As' shown in Fig. 13 the loop holder is in the form of a segment of acircular ring. lts outer surface is flat and lies in a single planethroughout, while its inner surface is cut away as shown at 3, so as toreduce the cross sectional size of the beak, thereby enabling it toenter the loop with greater certainty. Excepting for the cut-awayportion, 3, the loop holder' is of substantially rectangular shape incross section through out, and its inner face is of uniform andcontinuous, in rear of its point, or size in cross section, which latterdoes not exceed the size of the loop which it is to enter and passthrough. The size of the loop is determined by the length of theindividual stitches and the making of the loop of this exact sizedepends upon the travel of the needle and the feed dog. To be morespecie, if for example a stitch of of an inch is to be made, theamplitude of downward movement of the needle after the top side of itseye comes to a bearing upon the bight of the nascent loop, must be 6112of an inch. As the needle moves upward from lthis position to theposition shown in Fig. 3, thenascent loop will be spread or distended asshown in Figs. 9 and 9a, and thereafter the beak, l, of the loop holderwill enter the loop between its inner side w and sol y in doing so theloop will beV still further lconcentric with the loop holder.

spread -or distended, or more strictly speaking, the needle will slideupward on that portion of ,the thread which lies against its outersurface and thereby remove from the loop that portion of the, needlethread which lies above its eye and between the two sides of the loop.This will leave the loop unobstructed and of sufficient size to permitYthe'main` body portion of thed loop holder to enter and pass throughit, as 'shown more clearly in Figs. 1 and 12, but this also is`accomplished without'enlarging o the loop. As the loop holder continuesto move in the direction of the arrow, its heel, 4, will'pass out of theloop and leave the loop free, 'as shown inrFig. 4. It is then engaged bythe inclined surface 5, of-a detlecting lug, 6, which is locatedopposite, but out of contact with the heel, 4, of the loop holder. Theinclination of the surface 5 is such that it will act radially upon theloop and deflectit toward the wrong side of the work,'thus bringing theloopV to a vposition close to and substantially parallel withgthe work.During the time that the loop holderV ispmaking a partial revolutionfrom the position shown in Figs. 3 and 6, to

that shown in Fig. 1, the needle is Vmoving upward to its highestposition and while the loop holder is moving from the position shown inFig. 1 to the positions shown in Figs. 4 and 5, the needle is movingdownward. During this downward movement, the point of the needle afterpassing through the work, as shown in Fig. 4, will enter the previouslyVformed loop, as shown in Fig. 5, the distended loop being meanwhile heldin its position substantially parallel with the work by a surface, 7, onthe deiecting lug, 6, which surface, 7, is a continuation of thesurface,5, and is concentric with the axis of movement of the loopholder. The poi nt of the needle thus takes the loop while the latter isstill resting upon the surface, 7, and in order to permit this the lug,6, has a peripheral groove, 8, which provides clear ance for the pointof the needle. The deiieeting lug, 6, is carried by a revoluble partherein called a driver, the axis of which is In the embodimentof theinvention shown in the drawings .this revoluble driver isY in the formof a disk9, which is encircled by and Vlies in the plane of the loopholder. This disk is non-rotatably secured to a shaft, 10, and has inits outer face a diametrically disposed groove, the side walls, 11, ofwhich form guide ways for a reciproeable slide,

l12, the fit being free and easy so that the slide is capable ofreciprocating between its guide-ways with but little friction. ln Figs.14 and 15 this slide is shown as being formed of two parts rabbeted andoverlapped at their meeting ends, but this two part construction has noreal advantage over the one-part construction and is shown for the solepurpose of illustrating a modilication vlar to the sides of the slidewhich lie against the guide-ways, 11, and in this slot fits anon-circular block, 14, rotatably mounted upon a pin, 15, carried by thefixed face plate, 16, which confines the loop holder, 2, in place. Thepin, 15, is located eccentrically with relation to the axis of rotationof the driver, 9,7so that while the block, 14, is free to rotaterelatively to the pin, 15, it is nevertheless confined to a fixedangular position with relation to the axi's of rotation of the driver,and is, therefore, prevented from being carried bodily in a circularcourse as lhe driver, 9, revolves. With this arrangement it will be seenthat as the driver, 9, revolves, the slide, 12, will be carried with itand will also be radially reciprocated back and forth between theguide-ways, 11. f desired the block, 14, may be omitted, as shown inFig. 14, in which case the eccentric pin, 15, is made of the samediameter as the width of the slot, 13. The slide, 12, carries at itsopposite ends plungers in the form of pins, 17, and 17 a, which areradial with respect to the driver, 9, and are adapted to be inserted inand withdrawn from perforations forming sockets, 18 and 18,respectively, which pass completely through the loop holder atdiametrically opposite points. The arrangement is such that when thebeak of the loop holder is about to enter the loop, the plunger, 17,will be completely moved inward, radially, and withdrawn from thesocket, 18, so as to permit the loop to slip along the inner uniformface of the loop holder and escape past the plunger, 17. At the sametime the plunger, 17, will be projected a greater or less distancebeyond the periphery of the loop holder, the race plate, 19, being cutaway as at 20, to permit of the free movement of the ends of theplungers as they are successively projected and retracted. rlhe raceplate, 1:5), of the loop holder is permanently secured, as by screws,21, to a fixed part of the machine head and the face plate, 16, issecured to the race plate as by screws engaging thread` ed openings, 22,in the race plate, or by any other suitable means. The race plate is ofgenera-l annular shape and the race way for the loop holder is formed bycounterboring the race plate to provide an annular shoulder, 23, againstwhich the inner face of the loop holder lits, so as to be easilyslidable thereon. The clearance, 20, above mentioned, is provided by asecond counterbore resulting in a second annular shoulder, Q4, whichforms one side of a groove, 20, into which the pins, 17 and 17a,project, the opposite side of this groove being formed on the faceplate, 16.

TVl/vhat l claim as new is:

1. In a sewing machine the combination with a thread-tension and meansfor supporting it, of a straight vertical needle, means forreciprocating it vertically through strokes of equal length, whereby ateach downward stroke it will draw through the thread-tension a length ofthread equal to that taken up in making the last preceding stitch andwhereby, during each upward stroke that portion of the thread which isbetween the eye of the needle and the work will slacken, forming a loop,a loop-taking member movable in a circular path which intersects saidloop, and means for producing one complete revolution of the loop-takingmember during each reciprocation (including an up stroke and a downstroke) oit the needle, the maximum cross sectional size of the looptaking member being no greater than the size of the loop formed asaforesaid, whereby the loop-taking member in passing through the loopdoes not enlarge it and thereby draw thread through the tension.

2. In a sewing machine, mechanism for forming a chain stitch, having, incombination, a loop-taking member consisting of a segmental ring movablein a circular path, means for moving it, the means last aforesaid havinga rotatable part lying in the plane of said segmental ring and havingits axis concentric with the axis of movement of said segmental. ring, arigid movable device carried by said rotatable part and located in theplane of said segmental ring, means for confining said movable device torectilinear movement radially with respect to the axis of movement ofthe rotatable part carrying it, and means coperating with said rotatablepart for moving said radially movable device into and out of engagementwith said segmental ring.

3. 1n a sewing machine, mechanism Jfor orming a chain stitch, saidmechanism having, in combination, a loop-taking member movable in acircular path, means for thus moving it, the means last aforesaid havinga rotatable driver lying in the plane of the loop-taking member, a slidecarried thereby and movable radially in a plane perpendicular to theaxis of said driver and a fixed part, said slide and fixed partcoperating with each other for reciprocating the slide endwise, radiallywith respect to the axis of rotation of the loop-taking member.

4. lin a sewing machine,`mechanism for forming a chain stitch, saidmechanism having, in combination, a loop-taking member consisting'of asegmental ring movable in a circular path and means for thus moving it,the means last aforesaid having a driver rotatable about an axisconcentric with the axis of movement of the loop-taking member, saiddriver having a lug provided with a radially acting cast-oli surfacelocated opposite the heel end of the loop-taking memer. i

5. In a sewing machine, mechanism for forming a chain stitch, saidmechanism having, in combination, a loop-taking member consisting of asegmental ring movable in a circular path and meansfor thus moving it,the means last aforesaid having a driver rotatable about an axisconcentric with the axis of movement Vof the loop-taking member, saiddriver having a lug provided with a radially acting cast-off surface andalso with a surface for supporting the loop in a positionV substantiallyparallel with Vthe Work. Y

6. In a sewing machine, the combination with. a needle and a loop-takingmember movable in a circular path that intersects the loop formed by theneedle, of a rotatable driver, the axis of which is concentric with theaxis of movement of the loop-taking member, said driver having a guard,the working surface of which lies in a plane perpendicular to its axisof rotation and close to the outer side of the needle, said driver beingcut away opposite said guard for permitting the loop to bow inward fromthe needle.

7. ln a sewing machine, mechanism for forming a chain stitch, saidmechanism having a loop-taking member movable in a circular path, andmeans for thus moving said loop-taking member, the means last aforesaidhaving a driver rotatable about an axis concentric with the axis ofmovement of the loop-taking member, said driver having two guardslocated upon opposite sides of the needle and a suliicient distanceapart to leave between them clearance for the needle, one of said guardsbeing of greater radial height than the other.

8. In a sewing machine, mechanism for forming a chain stitch, saidmechanism having in combination a loop-taking member movable in acircular path and means for thus moving said loop-taking member, themeans last aforesaid having a driver located in the plane of theloop-taking member and rotatable about an axis concentric with the axisof movement of said loop-taking member, a radially movable rigid plungercarried by the driver and adapted to be moved into and out of engagementWith the loop taking member and means for moving the Y plunger asaforesaid, said driver having means for moving it in a circular path,the

Y means last aforesaidhaving a driverrsurrounded by and located in theplanevof the loop-taking member, a radially Vmovable rigid plunger alsolocated in the plane of Ythe loop-taking member and adapted to be movedinto and out -of'engagement there-j With, the driver having means forconfining the plunger to radial rectilinear movement in a planeperpendicular to the axis of the loop-taking member, means for rotatingthe v driver and means for imparting movement from the driver to theplunger for moving the latter.

10. In mechanism for forming a chain stitch, the combination With aloop-taking member movable in a circular path, of means for thus movingit, the means last aforesaid having a rotatable driver, a slide movableradially relatively to the driver, guides carried by the driver andengaging the slide for confining it to radial movement, in a planeperpendicular to the axis of the loop-taking member, and means carriedby the slide and adapted to `engage and disengage the loop-takingmember.

11. In mechanism for forming a chain stitch, the combination With aloop-taking member, consisting of av segmental ring movable in acircular path about its axis, and means for thus moving it, the meanslast aforesaid having a reciproeable slide mounted on the driver, saiddriver having guides for confining the slide to radial movement anddiametrically arranged plungers adapted to be moved into and out ofengagement With the loop-takingmember. Y

12. In mechanism` for forming a chain stitch, the combination with aloop-taking member consisting of a segmental ring movable in a circularpath concentrie'ivith its axis, of means for thus moving the loop-takingmember, the means last aforesaid having a driver surrounded by andlocated in the plane of the loop-taking member and rotatable about anaxis concentric therewith, radially disposed plungers carried by thedriver, the loop-taking member having radially disposed sockets in Whichsaid plungers are movable and said plungers being of sufficient lengthto extend completely through the loop-taking member, and means derivingits movements from the driver for reciprocating the plungers, saiddriver having means for conning the plungers to rectilinear movement ina plane perpendicular to the axis of the loop-taking member.

13. In mechanism for forming a chain stitch, the combination with aloop-taking member consisting of a segmental ring movable in a circularpath concentric with its axis, of means for thus moving it, the meanslast aforesaid having a driver surrounded by the loop-taking member androtatable about an axis concentric with the axis of movement of theloop-taking member, a reciprocable slide carried bythe driver andradially disposed plungers carried by the slide, the driver havingguides for con lining the slide to rectilinear movements, theloop-taking member having diametrically arranged radial socketsextending through it and the slide having plungers adapted to bereciprocally inserted and removed from the oppositely located sockets,the plungers being of suflicient length to extend quite through theloop-taking mem ber and project beyond the periphery thereof.

14. In mechanism for forming a chain stitch, the combination With aloop-taking member movable in a circular path, of means for thus movingit, said means having a driver rotatable about an axis concentric withthe axis of movement of the looptaking member, a slide carried by thedriver, said driver having guides for confining the slide to rectilinearmovements, means carried by the slide for engaging the looptakingmember, means for rotating the driver, and a fixed pin disposedeccentrically relatively to the axis of rotation of the driver, and theslide being provided with means for permitting its lateral movementrelatively to said pin.

15. In mechanism for forming a chain stitch, the combination With aloop-taking member movable in a circular path, of means for thus movingit, said means having a driver rotatable about an axis concentric Withthe axis of movement of the loop-taking member, a slide carried by thedriver, said driver having guides for confining the slide to rectilinearmovements, means carried by the slide for engaging the looptakingmember, means for rotating the driver, and a fixed pin disposedeccentrically relatively to the axis of rotation of the driver, and ablock rotatively mounted on said pin, said slide having a transverseslot in Which said block fits, whereby the slide is permitted to movelaterally relatively to said pin.

16. In mechanism for forming a chainstitch, the combination of aloop-taking member consisting of a segmental ring, a race in which it ismounted to move in a circular path concentric with its axis, means forthus moving it, the means last aforesaid having a driver surrounded byand located in the plane of the loop-taking member and rotatable aboutan aXis concentric therewith, a slide carried by the driver and movableradially relatively thereto, the driver having guides for coniining theslide to movement in a plane perpendicular to the aXis of the driver,and means carried by the slide and adapted to engage the loop-takingmember for driving it.

17. ln a sewing machine, in combination, a race member, a segmentalloop-holder mounted to revolve in the race member, a rotatable drivingmember, a plurality of radially movable plungers actuated by the drivingmember, each positively engagable with'the loop-holder, and means fordisengaging the plungers from the loop-holder successively.

18. In a sewing machine, in combination,

a race member, a segmental loop-holder mounted to revolve in the racemember', and a circular revoluble member within the loopholder andhaving a loop-deflecting lug projecting in line with the rearward endthereof, the perimeter of the circular member being recessed in back ofthe lug.

19. 1n a sewing machine, in combination, a race member, a segmentalloop-holder mounted to revolve in the race member, and a revolublemember within the loop-holder and having a slotted loopdeflecting lugprojecting in line with the rearward end thereof, the revoluble memberbeing laterally recessed back of the lug.

vANDivnn J. VAN' HORN.

l/Vitnesses:

L. M. HOPKINS, JOSEPH KRAUSE.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents,

' Washington, D. C.

